Sorry to hear you have had a bad experience. I hope you manage to get out without further loss.
I had not heard of Vemma but a quick google search shows a few warnings and the Vemma site itself has some of the usual MLM promises.
These schemes have failure built in...avoid."When I worked at the bank I had a big chair, a big desk, a big title but a small paycheck. Today I work from home full time with Vemma and I earn more in a month than I used to earn per year.* The product is great, the company is solid, and the training and support is second to none. When you join Vemma, you are joining a winning team!"
- Matt Morrow* Individual results vary. You may not do as well.
Vemma Elite Member